fkie_cve-2021-28503
Vulnerability from fkie_nvd
Published
2022-02-04 23:15
Modified
2024-11-21 05:59
Severity ?
7.4 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
The impact of this vulnerability is that Arista's EOS eAPI may skip re-evaluating user credentials when certificate based authentication is used, which allows remote attackers to access the device via eAPI.
References
psirt@arista.comhttps://www.arista.com/en/support/advisories-notices/security-advisories/13605-security-advisory-0072Mitigation, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.arista.com/en/support/advisories-notices/security-advisories/13605-security-advisory-0072Mitigation, Patch, Vendor Advisory
Impacted products
Vendor Product Version
arista eos *
arista eos *
arista eos *
arista eos *
arista eos *


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "C48331B8-808D-4080-BD74-2DC93014D10C",
                     versionEndIncluding: "4.22.9m",
                     versionStartIncluding: "4.22",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "A3310AD8-03C5-4018-A49B-C3527B9C2ADB",
                     versionEndIncluding: "4.23.9",
                     versionStartIncluding: "4.23",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "AFB2FFFE-6E99-4222-B3F4-854B5A4B8B0A",
                     versionEndIncluding: "4.24.7",
                     versionStartIncluding: "4.24",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "E004CBA8-2859-4098-948B-2F5D0DD5EBA5",
                     versionEndIncluding: "4.25.5",
                     versionStartIncluding: "4.25",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "06AA619C-3D2F-41FC-A3F1-0080F57A8F09",
                     versionEndIncluding: "4.26.2",
                     versionStartIncluding: "4.26",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "The impact of this vulnerability is that Arista's EOS eAPI may skip re-evaluating user credentials when certificate based authentication is used, which allows remote attackers to access the device via eAPI.",
      },
      {
         lang: "es",
         value: "El impacto de esta vulnerabilidad es que EOS eAPI de Arista puede omitir la reevaluación de las credenciales del usuario cuando es usada la autenticación basada en certificados, lo que permite a atacantes remotos acceder al dispositivo por medio de eAPI",
      },
   ],
   id: "CVE-2021-28503",
   lastModified: "2024-11-21T05:59:47.697",
   metrics: {
      cvssMetricV2: [
         {
            acInsufInfo: false,
            baseSeverity: "MEDIUM",
            cvssData: {
               accessComplexity: "MEDIUM",
               accessVector: "NETWORK",
               authentication: "NONE",
               availabilityImpact: "PARTIAL",
               baseScore: 6.8,
               confidentialityImpact: "PARTIAL",
               integrityImpact: "PARTIAL",
               vectorString: "AV:N/AC:M/Au:N/C:P/I:P/A:P",
               version: "2.0",
            },
            exploitabilityScore: 8.6,
            impactScore: 6.4,
            obtainAllPrivilege: false,
            obtainOtherPrivilege: false,
            obtainUserPrivilege: false,
            source: "nvd@nist.gov",
            type: "Primary",
            userInteractionRequired: false,
         },
      ],
      cvssMetricV31: [
         {
            cvssData: {
               attackComplexity: "HIGH",
               attackVector: "NETWORK",
               availabilityImpact: "HIGH",
               baseScore: 7.4,
               baseSeverity: "HIGH",
               confidentialityImpact: "NONE",
               integrityImpact: "HIGH",
               privilegesRequired: "NONE",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H",
               version: "3.1",
            },
            exploitabilityScore: 2.2,
            impactScore: 5.2,
            source: "psirt@arista.com",
            type: "Secondary",
         },
         {
            cvssData: {
               attackComplexity: "LOW",
               attackVector: "NETWORK",
               availabilityImpact: "HIGH",
               baseScore: 9.8,
               baseSeverity: "CRITICAL",
               confidentialityImpact: "HIGH",
               integrityImpact: "HIGH",
               privilegesRequired: "NONE",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
               version: "3.1",
            },
            exploitabilityScore: 3.9,
            impactScore: 5.9,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2022-02-04T23:15:11.350",
   references: [
      {
         source: "psirt@arista.com",
         tags: [
            "Mitigation",
            "Patch",
            "Vendor Advisory",
         ],
         url: "https://www.arista.com/en/support/advisories-notices/security-advisories/13605-security-advisory-0072",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Mitigation",
            "Patch",
            "Vendor Advisory",
         ],
         url: "https://www.arista.com/en/support/advisories-notices/security-advisories/13605-security-advisory-0072",
      },
   ],
   sourceIdentifier: "psirt@arista.com",
   vulnStatus: "Modified",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-305",
            },
         ],
         source: "psirt@arista.com",
         type: "Secondary",
      },
      {
         description: [
            {
               lang: "en",
               value: "CWE-287",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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